نتایج جستجو برای: hydride magnesium
تعداد نتایج: 42914 فیلتر نتایج به سال:
The sequential treatment of Lewis acids with N,N'-bidentate ligands and thereafter with ButLi has afforded a series of hydride-encapsulating alkali metal polyhedra. While the use of Me3Al in conjunction with Ph(2-C5H4N)NH gives Ph(2-C5H4N)NAlMe2 and this reacts with MeLi in thf to yield the simple 'ate complex Ph(2-C5H4N)NAlMe3Li.thf, the employment of an organolithium substrate capable of beta...
As an efficient hydrogen storage material, magnesium hydride (MgH2) has a high capacity of 7.6 wt%. However, its performance deteriorates because thermodynamic and kinetic temperatures the fast agglomeration nanocrystals during uptake release process. The exploration catalysts is popular, but currently challenging, topic. Therefore, we successfully prepared flake-like molybdenum (Mo) doped them...
M. Pozzo1 and D. Alfè1,2,3,* 1Department of Earth Sciences and Materials Simulation Laboratory, University College London, Gower Street, London WC1E 6BT, United Kingdom 2Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom 3London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London WC1H 0AH, United Kingdom Re...
Nanosystems can exhibit interesting novel chemical and physical properties and are widely exploited for their functionalities. [ 1–6 ] Scrutinizing such systems and relating, e.g., details in their chemistry and geometry to functionality, remains, however, a signifi cant experimental challenge. Unwanted artifacts and averaged responses are always present in ensembles of a sample material and ar...
Various synthesis and rehydrogenation processes of lithium hydride (LiH) and magnesium amide (Mg(NH₂)₂) system with 8:3 molar ratio are investigated to understand the kinetic factors and effectively utilize the essential hydrogen desorption properties. For the hydrogen desorption with a solid-solid reaction, it is expected that the kinetic properties become worse by the sintering and phase sepa...
An ultrathin angle-insensitive color filter enabling high saturation and a wide gamut is proposed by relying on magnesium hydride-hydrogenated amorphous silicon (MgH2-a-Si:H) lossy dielectric layer. Based effective medium theory, the MgH2-a-Si:H layer with an thickness can be equivalent to quasi-homogeneous complex refractive index, which tuned altering of MgH2 obtain targeted value imaginary p...
The role of twist-boat conformers of cyclohexanones in hydride reductions was explored. The hydride reductions of a cis-2,6-disubstituted N-acylpiperidone, an N-acyltropinone, and tert-butylcyclohexanone by lithium aluminum hydride and by a bulky borohydride reagent were investigated computationally and compared to experiment. Our results indicate that in certain cases, factors such as substrat...
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